Ultra Feller operators from a functional analytic perspective

Fuente: arXiv
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Autori principali: Dobrick, Alexander, Hölz, Julian, Kunze, Markus
Natura: Preprint
Pubblicazione: 2023
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author Dobrick, Alexander
Hölz, Julian
Kunze, Markus
author_facet Dobrick, Alexander
Hölz, Julian
Kunze, Markus
contents It is a widely acknowledged fact that the product of two positive strong Feller operators on a Polish space $E$ enjoys the ultra Feller property. We present a functional analytic proof of this fact that allows us to drop the assumption that the operators are positive and also extends the applicability of this result to more general state spaces. As it turns out, this result can be considered a variant of the theorem that on a Banach space with the Dunford--Pettis property, the product of two weakly compact operators is compact.
format Preprint
id arxiv_https___arxiv_org_abs_2312_13266
institution arXiv
publishDate 2023
record_format arxiv
spellingShingle Ultra Feller operators from a functional analytic perspective
Dobrick, Alexander
Hölz, Julian
Kunze, Markus
Functional Analysis
Probability
46A50, 47B07
It is a widely acknowledged fact that the product of two positive strong Feller operators on a Polish space $E$ enjoys the ultra Feller property. We present a functional analytic proof of this fact that allows us to drop the assumption that the operators are positive and also extends the applicability of this result to more general state spaces. As it turns out, this result can be considered a variant of the theorem that on a Banach space with the Dunford--Pettis property, the product of two weakly compact operators is compact.
title Ultra Feller operators from a functional analytic perspective
topic Functional Analysis
Probability
46A50, 47B07
url https://arxiv.org/abs/2312.13266